Movement prediction from real-world images using a liquid state machine

Authors:
Harald Burgsteiner;Mark Kröll;Alexander Leopold;Gerald Steinbauer
Affiliations:
InfoMed/Health Care Engineering, Graz University of Applied Sciences, Eggenberger Allee, Graz, Austria;Institute for Theoretical Computer Science, Graz University of Technology, Inffeldgasse, Graz, Austria;Institute for Theoretical Computer Science, Graz University of Technology, Inffeldgasse, Graz, Austria;Institute for Software Technology, Graz University of Technology, Inffeldgasse, Graz, Austria
Venue:
IEA/AIE'2005 Proceedings of the 18th international conference on Innovations in Applied Artificial Intelligence
Year:
2005

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Abstract

Prediction is an important task in robot motor control where it is used to gain feedback for a controller. With such a self-generated feedback, which is available before sensor readings from an environment can be processed, a controller can be stabilized and thus the performance of a moving robot in a real-world environment is improved. So far, only experiments with artificially generated data have shown good results. In a sequence of experiments we evaluate whether a liquid state machine in combination with a supervised learning algorithm can be used to predict ball trajectories with input data coming from a video camera mounted on a robot participating in the RoboCup. This pre-processed video data is fed into a recurrent spiking neural network. Connections to some output neurons are trained by linear regression to predict the position of a ball in various time steps ahead. Our results support the idea that learning with a liquid state machine can be applied not only to designed data but also to real, noisy data.